1235128682151 has 192 divisors, whose sum is σ = 2277500243200. Its totient is φ = 640851886080.

The previous prime is 1235128682131. The next prime is 1235128682167. The reversal of 1235128682151 is 1512868215321.

It is a happy number.

1235128682151 is a `hidden beast` number, since 1 + 2 + 3 + 512 + 8 + 6 + 82 + 1 + 51 = 666.

It is not a de Polignac number, because 1235128682151 - 2¹⁷ = 1235128551079 is a prime.

It is a super-2 number, since 2×1235128682151² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1235128682097 and 1235128682106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235128682111) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 704579091 + ... + 704580843.

Almost surely, 2^{1235128682151} is an apocalyptic number.

1235128682151 is a deficient number, since it is larger than the sum of its proper divisors (1042371561049).

1235128682151 is a wasteful number, since it uses less digits than its factorization.

1235128682151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2054 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The spelling of 1235128682151 in words is "one trillion, two hundred thirty-five billion, one hundred twenty-eight million, six hundred eighty-two thousand, one hundred fifty-one".